I am looking kinda standardized interface for setting GPIOs between the
DVB drivers chip drivers. For most typical example there is LNA which is
controlled by RF-tuner GPIO. That kind of LNA controlling logic belongs
to interface driver thus I will need to call demod driver from bridge in
order to set LNA.
Simply solution is to add own own callbacks, set_gpio() and get_gpio()
for both tuner and demod ops but I will not like to that of there is
existing solutions. Grepping Documentation reveals quite much documents,
most interesting seems to be:
Documentation/gpio.txt
Documentation/devicetree/bindings/gpio/gpio.txt
Documentation/pinctrl.txt
Is there anyone who could say straight now what is best approach and
where to look example?
regards
Antti
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http://palosaari.fi/
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